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From: "Caldarale, Charles R" <Chuck.Caldarale@unisys.com>
To: Tomcat Users List <users@tomcat.apache.org>
Date: Thu, 2 Jan 2014 12:16:16 -0600
Subject: RE: All worker threads of my tomcat have been occupied!
Thread-Topic: All worker threads of my tomcat have been occupied!
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> From: Benimaur Gao [mailto:benimaur@gmail.com]=20
> Subject: All worker threads of my tomcat have been occupied!

> I tried jstack to get some info, and then I found a lot of thread call
> stack like:

> "http-8082-154" daemon prio=3D10 tid=3D0x00007f711c21f800 nid=3D0x5b0a wa=
iting on
> condition [0x00007f70dc887000]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
>     at java.lang.Thread.sleep(Native Method)
>     at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve=
.java:132)

> It seems all of the 200 JIoEndpoint$Worker threads had been occupied.

> It seems context had been set to reload state at some time, but I can't
> figure out under what  circumstance would put tomcat into such state.

Try looking at the threads _not_ doing the wait from StandardContextValve; =
one of those should be involved in reloading the webapp and perhaps you can=
 find out what it's waiting for.

 - Chuck


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